Transformers: Animated

Optimus teams up with Sentinel Prime in order to defeat the Headmaster.

Unaware of the Decepticon activity, the Elite Guard take Optimus Prime and the Autobots back to Cybertron.

The AllSpark creates a new Autobot out of pieces of garbage.

Bumblebee competes against the Decepticons in an underground racing competition.

When the AllSpark turns construction vehicles into Autobots, Bulkhead becomes fast friends. However, the Decepticons have other plans in mind.

Prowl goes after Starscream when he escapes from the custody of the Elite Guard. However, he receives competition from Lockdown when Megatron offers a bounty on Starscream.

The second-rate villains of Detroit team up to beat the Autobots.

While chasing an Autobot traitor, Bumblebee thinks back on the time he spent with Bulkhead in the Autobot Boot Camp.

Unlikely matchups! It's Optimus Prime and Dinobot Grimlock vs. Blackarachnia and Meltdown.

Sari has to defend the Autobot home base from invading Constructicons.

Megatron comes up with a plan to build a space bridge to Cybertron. However, he needs to capture Bulkhead, an expert space bridge mechanic, in order to build the bridge. Megatron's ultimate goal is to take over Cybertron and eventually the universe.

The Final Battle! It's Optimus Prime and the Autobots against Megatron and the Decepticons in a fate to save both Earth and Cybertron.